Convection in a rotating, laterally heated annulus pattern velocities and amplitude oscillations
- 1 December 1981
- journal article
- research article
- Published by Taylor & Francis in Geophysical & Astrophysical Fluid Dynamics
- Vol. 18 (3-4), 301-320
- https://doi.org/10.1080/03091928108208842
Abstract
The velocities of the wave patterns relative to the rotating annulus have been measured with either increasing or decreasing positive radial temperature gradients and different rotation rates, with the fluid in thermal equilibrium and in contact with a rigid lid. The pattern velocities are dependent on initial conditions except in the unique areas of the stability diagram, where the velocities observed with either increasing or decreasing ΔT, overlap. The pattern velocities change discontinuously with each wave number transition, with a particularly large discontinuity at the transition from two to one wave. The frequency of the amplitude oscillations of the waves has been measured also. It has been found that the period of the oscillation of the three wave pattern is inversely proportional to the period of the pattern velocity, which means that in this case the ratio of the frequency of amplitude oscillation and the frequency of the pattern revolution is incommensurate.Keywords
This publication has 13 references indexed in Scilit:
- Convection in a rotating, laterally heated annulus the wave number transitionsGeophysical & Astrophysical Fluid Dynamics, 1981
- Time-Dependent Modes of Behavior of Thermally Driven Rotating FluidsJournal of the Atmospheric Sciences, 1980
- Convection in a rotating annulus with a negative radial temperature gradientGeophysical & Astrophysical Fluid Dynamics, 1978
- Baroclinic waves in a container with sloping end wallsPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1975
- Sloping convection in a rotating fluidAdvances in Physics, 1975
- An experimental study of the effects of the upper boundary condition on the thermal convection in a rotating, differentially heated cylindrical annulus of waterGeophysical Fluid Dynamics, 1973
- An investigation of the structure of baroclinic waves using three‐level streak photographyQuarterly Journal of the Royal Meteorological Society, 1972
- Convection in a rotating laterally-heated annulusJournal of Fluid Mechanics, 1972
- The Mechanics of VacillationJournal of the Atmospheric Sciences, 1963
- An experimental study of thermal convection in a rotating liquidPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1958